/*******************************************************************************
 * Copyright 2011, 2012 Chris Banes.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *******************************************************************************/
package com.dxtx.widget.photoview;

import android.annotation.TargetApi;
import android.os.Build.VERSION;
import android.os.Build.VERSION_CODES;
import android.view.MotionEvent;
import android.view.View;

public class Compat {

	private static final int SIXTY_FPS_INTERVAL = 1000 / 60;

	public static void postOnAnimation(View view, Runnable runnable) {
		/*
		 * if (VERSION.SDK_INT >= VERSION_CODES.JELLY_BEAN) {
		 * postOnAnimationJellyBean(view, runnable); } else {
		 * view.postDelayed(runnable, SIXTY_FPS_INTERVAL); }
		 */

		view.postDelayed(runnable, SIXTY_FPS_INTERVAL);
	}

	/*
	 * @TargetApi(16) private static void postOnAnimationJellyBean(View view,
	 * Runnable runnable) { view.postOnAnimation(runnable); }
	 */

	public static int getPointerIndex(int action) {
		if (VERSION.SDK_INT >= VERSION_CODES.HONEYCOMB)
			return getPointerIndexHoneyComb(action);
		else
			return getPointerIndexEclair(action);
	}

	@SuppressWarnings("deprecation")
	@TargetApi(VERSION_CODES.ECLAIR)
	private static int getPointerIndexEclair(int action) {
		return (action & MotionEvent.ACTION_POINTER_ID_MASK) >> MotionEvent.ACTION_POINTER_ID_SHIFT;
	}

	@TargetApi(VERSION_CODES.HONEYCOMB)
	private static int getPointerIndexHoneyComb(int action) {
		return (action & MotionEvent.ACTION_POINTER_INDEX_MASK) >> MotionEvent.ACTION_POINTER_INDEX_SHIFT;
	}

}
